Geophysical Survey: refers to the systematic collection of geophysical data for spatial studies. (wikipedia)

Glacier -an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.
Glacier.JPG
www.skipkratzerland.com/ glacier2.jpg

Glyph -pictograph or hieroglyph or a carved sculpture
glyph.gif
http://www.mediaglyphs.org/mg/glyph.gif

Goody - abbreviation of the phrase good wife.

Gorget -a patch on the throat of a bird or other animal, distinguished by its color, texture, etc. also can be a piece of armor for neck.
gorget_transp.gif
www.revival.us

Gosnold, Bartholomew - the first captain to lead the English colony to settle in Jamestown.
BATH_GOSNOLD.jpg
http://www.stedmundsbury.gov.uk/sebc/visit/images/fiqbathgos2.jpg

Grid: A network of uniformly spaced squares that divide a site into units; used to measure and record providence.
grid.JPG
www.library.csi.cuny.edu

Ground Penetrating Radar -Geophysical method using the radar to pulse the image underground to near surface.
GPR.JPG
http://www.gprdata.com/images/about_gpr_01.jpg

Ground Stone Tools: Tools and other objects including axes and pestles made by grinding and pecking the item into final form.
GST.JPG
http://www.ohiohistorycentral.org/images/prehistory/artifacts/sgt-l.jpg

Geographer-a person who specializes in geographical research

Genocide- the complete extermination of a group of people or race